---
title: IEIT Systems
---

>[IEIT Systems](https://en.ieisystem.com/) is a Chinese information technology company
> established in 1999. It provides the IT infrastructure products, solutions,
> and services, innovative IT products and solutions across cloud computing,
> big data, and artificial intelligence.


## LLMs

See a [usage example](/oss/integrations/llms/yuan2).

```python
from langchain_community.llms.yuan2 import Yuan2
```

## Chat models

See the [installation instructions](/oss/integrations/chat/yuan2/#setting-up-your-api-server).

Yuan2.0 provided an OpenAI compatible API, and ChatYuan2 is integrated into langchain by using `OpenAI client`.
Therefore, ensure the `openai` package is installed.

<CodeGroup>
```bash pip
pip install openai
```

```bash uv
uv add openai
```
</CodeGroup>

See a [usage example](/oss/integrations/chat/yuan2).

```python
from langchain_community.chat_models import ChatYuan2
```
